52 RayPilot 650 Control Unit - Owner’s Handbook
5 Commissioning the Autopilot
WARNING:
Manual gain adjustment must be made after reducing from
planing to displacement speed and before increasing from
displacement to planing speed.
Adjusting the counter rudder
If you intend to use Response level 3 on a Type 150/400
(non-GyroPlus) or Type 100/300 autopilot system, you will need to
adjust the counter rudder. Counter rudder is the amount of rudder the
autopilot applies to try to prevent the boat from yawing off course.
Higher counter rudder settings result in more rudder being applied.
To check the counter rudder setting
1. Set Response to level 3.
2. Sail your boat at cruising speed in clear water
3. Press
AUTO to switch the autopilot to Auto mode, then make a
90° course change:
• when gain and counter rudder are both set correctly, the boat
performs a smooth continuous turn with minimal overshoot
• if the counter rudder is too low, the boat will still overshoot
• if counter rudder is too high, the boat will ‘fight’ the turn and
make a series of short, sharp turns: this results in a very
‘mechanical’ feel as the boat changes course
To adjust the counter rudder:
1. Access the Counter Rudder screen in Calibration mode.
2. Use the
▲ (NAV) and ▼ (LIGHTS) keys or course change knob
to adjust the counter rudder.
3. Press and hold
STBY for 2 seconds to save the changes.
4. Press
AUTO to check the autopilot performance in Auto mode.
The pilot is now calibrated and ready for use.
Further adjustments
Over time you may need to repeat these adjustments over a range of
sea conditions and headings to achieve good overall performance.
You may also need to adjust the AutoTrim setting. AutoTrim
determines how quickly the autopilot applies ‘standing helm’ to
correct for trim changes (caused, for example, by changes in the
wind load on the sails or superstructure, or an imbalance of engines).
81013_4.book Page 52 Wednesday, July 25, 2001 11:04 AM
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